2026-03-12T10:53:40Z https://uec.repo.nii.ac.jp/oai

oai:uec.repo.nii.ac.jp:00009251 2023-05-15T10:20:30Z 6

Highly stabilized optical frequency comb interferometer with a long fiber-based reference path towards arbitrary distance measurement Nakajima, Yoshiaki Minoshima, Kaoru © 2015 Optical Society of America An optical frequency comb interferometer with a 342-m-long fiber-based optical reference path was developed. The long fiber-based reference path was stabilized to 10−12-order stability by using a fiber noise cancellation technique, and small temperature changes on the millikelvin order were detected by measuring an interferometric phase signal. Pulse number differences of 30 and 61 between the measurement and reference paths were determined precisely, with slight tuning of the 53.4 MHz repetition frequency. Moreover, with pulse number difference of 61, a 6.4-m-wide scanning for the relative pulse position is possible only by 1 MHz repetition frequency tuning, which makes pulses overlapped for arbitrary distance. Such wide-range high-precision delay length scanning can be used to measure arbitrary distances by using a highly stabilized long fiber-based reference path. Optical Society of America 2015-10-05 eng journal article VoR https://uec.repo.nii.ac.jp/records/9251 10.1364/OE.23.025979 https://doi.org/10.1364/OE.23.025979 1094-4087 Optics Express 23 20 25979 25987 https://uec.repo.nii.ac.jp/record/9251/files/oe-23-20-25979.pdf application/pdf 922.1 kB 2019-06-05